Improvement in manufacture of illuminating-gas



To all whom it may concern:

.to be a full and exact description thereof', reti attached to the bottom of said still, used to "The water-tank J is provided with a false .handle to the gas-cock R, for the purpose of to the burners E, thus regulating the heat.

UNITED A. c. RAND, or New YORK, N. Y.

IMPROVEMENT IN MANUFACTURE OF ILLUMINATING-GAS.

Specication forming part of Letters 'atent No. S,92, dated April 13, 1869.

Be it known that I, ALONZO C. RAND, of the city, county, and State of New York, have made certain new and useful Improvements in Manufacturing IlluminatingGas by decomposing crude petroleum or other hydrocarbon liquids; and l do hereby declare the following ere-nce being had to the accompanying drawings, and to the letters of reference marked thereon.

The object of this invention is to decompose the vapors of crude petroleum, or other hydrc carbon liquids, by a tire or heat arranged automatically with reference to the quantity of gas in the gasholder, thereby providing for the manufacture of a large quantity ot' gas in a small space, thus enabling dwellings and hotels in crowded cities to manufacture their own gas in a simple and effective manner.-

In the drawings, A represents a still of peculiar construction, the vapor-pipe .B'being so arranged as to pass from the bottom of said still into thedome C, thus passing through the liquid in the still. D represents a cock draw olil any residue remaining therein. E represents a peculiar constructed gas-burner for distilling the liquid. F is the decomposer attached to the vaporpipe B, and is also provided with a gas-burner, G, et' peculiar or similar construction to E. H is a case surrounding the decomposer to retain the heat. I represents a condensing-worm connected with the decomposer used to condense. any vapors that may not be fully decomposed.

bottom, so that: the lower portion thereof forms an additional tank to hold4 the liquids that condense in said worin. This latter tank is provided with a drawcock, K, and also a gas-'outlet pipe, L, communicating with theinterior ot' the gas-holder M. N is the gas-delivery pipe, -provided at its lowest point with a drip-cock, 0;. Attached te the top side of the gas-holder is a projecting arm, l?, connect; in g with a perpendicular rod, Q. The lower end of said rod is connected with the 'lever 'opening and closing the same, thereby regu latin g the amount or quantity of gas furnished -S represents the gas-delivery pipe leading to the burners in the house. Connecting with this pipe S is the pipe T, furnishing gas to the still andV decomposer.

The operation is extremely simple and effective, as will readily be noticed, self-operatingA or automatic. I will now proceed t0 describe the same. The still A is nearly lled with the liquid through the cap a,'and the heat applied to the bottom of the still. The vapors arising from the heated oil pass upward into the dome C, thence downward through the vapor-pipe B, the lower portion ot' which is subjected to an intense heat, which partially decomposes them. From thence they pass into the decomposer F, which heilig supplied with a powerful heat they become thoroughly decomposed. The decomposer is so constructed that by un-v screwing the nut on boit b the cap or top of decomposer is easily removed, and any precipitate or dry carbon may be taken out. The gasburners used to distil and decompose the vapors are so arranged that the gas is mixed with atmosphere before combustion takes 'quent reduction ot' the quantity ot' gas delivered into the gas-holder. Thusit will be readily seen' that this apparatus is entirely selt'regulating, and a very small apparatus may be quite suiicient to light up the largest dwellings.

The movements of the gas-holder are never suiciently great to entirely shut o the gas from' the burner E. This is done by an extra A cock provided for the purpose.

Having thusdescribed my inventiom'what I claim as new, and desire to secure by Let'- The automatic method of regulating the re under the still, substantially as set forth.

A. C, RAND. Witnesses i R. BOEKLEN,

A. Kammer.. 

